Please Help! Giving a Medal!

Aluminum oxide, Al2O3, is used as a filler for paints and varnishes as well as in the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al2O3

Question

Please Help! Giving a Medal! 

Aluminum oxide, Al2O3, is used as a filler for paints and varnishes as well as in the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al2O3

anonymous · Answer

again same question 
n = m/M
where
n - number of moles 
m - mass
M - molar mass (from periodic  table of elements)

genny7 · Answer

@rishavraj

anonymous · Answer

is it that hard to put two numbers in calculator?

anonymous · Answer

en.wikipedia.org/wiki/Aluminium_oxide

anonymous · Answer

en.wikipedia.org/wiki/Aluminium_oxide

anonymous · Answer

en.wikipedia.org/wiki/Aluminium_oxide

anonymous · Answer

http://en.wikipedia.org/wiki/Aluminium_oxide

genny7 · Answer

@Kryten okay so all I have to do is plug in the numbers in the calculator?

anonymous · Answer

yes

genny7 · Answer

Kay thanks